Results 21 to 30 of about 4,299 (150)
Efeitos das chuvas de meteoros na ionosfera terrestre
Revista Brasileira De Geofisica, 1997 exaly +3 more sources
Diurnal variation of B parameters over Havana at low solar activity
Geofísica Internacional, 2004 Se presenta una tabla preliminar de los valores medios horarios de los parámetros de la región F2 del perfil de densidad electrónica de base: B0 (parámetro de espesor) y B1 (parámetro de forma) en el intervalo 00:00-23:00 LT.
Bienvenido Lazo Olazábal +3 more
doaj +1 more source
Pengesanan TEC Ionosfera Dengan Teknologi GPS
Jurnal Teknologi, 1998 Perkembangan yang pesat dalam teknologi angkasa lepas seperti Global Positioning System (GPS) memberi kemudahan di dalam bidang geoinformatik di mana ianya berkemampuan untuk memberikan hasil pengukuran posisi yang jitu di samping dapat membantu pengesanan TEC ionosfera.
Md.Nor Kamaruddin +1 more
openaire +1 more source
Tomographic imaging for reconstructing ionospheric distributions
Geofísica Internacional, 1999 El sistema ionosférico se analiza y se modela usando la técnica tomográfica, formulada en tres segmentos: el sistema de adquisición de datos ionosféricos, el modelo y el algoritmo de reconstrucción.
Víctor Hugo Ríos +1 more
doaj +1 more source
Atmosphere, 2021 The Earth’s ionosphere presents long-term trends that have been of interest since a pioneering study in 1989 suggesting that greenhouse gases increasing due to anthropogenic activity will produce not only a troposphere global warming, but a cooling in ...
Ana G. Elias +5 more
doaj +1 more source
Pengaruh penginapan ke atas disiplin pelajar di Universiti Tun Hussein Onn Malaysia [PDF]
, 2008 Kajian pengaruh penginapan ke atas disiplin pelajar di Universiti Tun Hussein Onn Malaysia (UTHM) ini memfokuskan kepada tiga objektif iaitu mengenal pasti tahap kriteria penginapan dari aspek fizikal dan bukan fizikal yang memberi kesan terhadap ...
Yaacob, Mohd Asmedi
core
Long Term Global Ionospheric Total Electron Content Trend Analysis
Geophysical Research Letters, Volume 51, Issue 21, 16 November 2024.Abstract Simulations based on physical models of the thermosphere‐ionosphere system suggest that the ionosphere will sink as the thermosphere cools and contracts in response to increasing greenhouse gas concentrations. As a consequence, long‐term trends can be expected in ionospheric parameters such as: total electron content (TEC), the critical ...
M. Paula Natali +6 more
wiley +1 more source
Ionospheric effects of volcanic eruptions
Geofísica Internacional, 2004 Se han realizado numerosos estudios sobre los efectos ionosféricos de la erupción volcánica del Monte Pinatubo de junio de 1991. Basados en intervalos de 1 minuto de sondaje realizado en estaciones ubicadas al norte del volcán, se han detectado ...
Argelia H.C. de Ragone +3 more
doaj +1 more source
Quality of TEC Estimated with Mod_Ion Using GPS and GLONASS Data [PDF]
, 2009 One of the largest sources of error in positioning and navigation with GNSS is the ionosphere, and the associated error is directly proportional to the TEC and inversely proportional to the square of the signal frequency that propagates through the ...
Paulo de Oliveira Camargo
core +2 more sources
Geofísica Internacional, 2004 In situ electron density profiles obtained from equatorial stations in Brazil using conventional Langmuir probes and High Frequency Capacitance probes are compared with IRI predictions in the light of the spectral distribution of the plasma density ...
P. Muralikrishna +3 more
doaj +1 more source